Topics: Adverbs
Choose the correct form of the word in parentheses: The third pig followed his mum’s advice and built a strong house out of bricks, which was the (difficult)………….house to build.
A. difficultly
B. difficultest
C. most difficult
Select your answer:

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Vocabulary › ViewUsing renewable energy instead of non-renewable one is of the most effective ______ methods.
A. energy-saving
B. energy-saved
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Skaters ……………… wear a helmet and kneepads.
A. should
B. shouldn’t
